Comparison of HbA1c results by aspects of diabetes management in patients interviewed by the research nurse prior to their 16th birthday with duration of diabetes over 1 year (n = 621)
| n (%) | Mean | SD | p | Adjusted* | |||
|---|---|---|---|---|---|---|---|
| Effect (95% CI) | p | ||||||
| *Model contains sex, age, and duration. | |||||||
| No. of blood glucose tests per day | |||||||
| None | 52 (8.4) | 9.49 | 1.97 | <0.0001 | 0 [reference category] | 0.005 | |
| 1 | 103 (16.6) | 9.10 | 1.51 | −0.36 | (−0.85 to 0.13) | ||
| 2 | 174 (28.0) | 8.71 | 1.45 | −0.68 | (−1.13 to −0.22) | ||
| 3 | 166 (26.7) | 8.71 | 1.49 | −0.55 | (−1.02 to −0.09) | ||
| >4 | 126 (20.3) | 8.35 | 1.35 | −0.85 | (−1.33 to −0.37) | ||
| No. of HbA1c tests in last year | |||||||
| <4 | 200 (32.5) | 9.03 | 1.64 | 0.004 | +0.37 | (0.10 to 0.65) | 0.03 |
| 4 | 244 (39.7) | 8.55 | 1.38 | 0 [reference category] | |||
| >4 | 171 (27.8) | 8.72 | 1.51 | +0.21 | (−0.09 to 0.65) | ||
| Doses of insulin per day | |||||||
| 1 | 35 (5.7) | 8.69 | 1.33 | 0.02 | +0.30 | (−0.23 to 0.82) | 0.07 |
| 2 | 465 (75.1) | 8.71 | 1.47 | 0 [reference category] | |||
| 3 | 102 (16.5) | 8.88 | 1.64 | −0.14 | (−0.46 to 0.19) | ||
| 4 | 17 (2.8) | 9.84 | 2.30 | +0.80 | (0.08 to 1.51) | ||
| Total insulin dose (U per kg per day) | |||||||
| <0.5 | 41 (6.6) | 8.20 | 1.33 | 0.0003 | 0 [reference category] | 0.43 | |
| 0.5–0.75 | 125 (20.2) | 8.46 | 1.58 | +0.11 | (−0.43 to 0.65) | ||
| 0.75–1.0 | 206 (33.2) | 8.70 | 1.48 | +0.28 | (−0.25 to 0.80) | ||
| 1–1.25 | 158 (25.5) | 9.07 | 1.58 | +0.43 | (−0.13 to 0.98) | ||
| >1.25 | 90 (14.5) | 9.07 | 1.40 | +0.33 | (−0.27 to 0.93) | ||
| No. of clinic attendances in last year | |||||||
| <4 | 199 (32.2) | 9.03 | 1.66 | 0.002 | +0.42 | (0.14 to 0.70) | 0.007 |
| 4 | 242 (39.1) | 8.51 | 1.34 | 0 [reference category] | |||
| >4 | 178 (28.8) | 8.80 | 1.57 | +0.32 | (0.03 to 0.61) | ||
| Member of Diabetes UK | |||||||
| No | 243 (39.1) | 9.08 | 1.67 | <0.0001 | 0 [reference category] | <0.0001 | |
| Yes | 378 (60.9) | 8.56 | 1.40 | −0.49 | (−0.73 to −0.26) | ||